JPH04270499A - Parking floor display device - Google Patents

Abstract

PURPOSE:To display the floor number of a parking floor at a stereoscopic parking lot by utilizing an on-vehicle height meter. CONSTITUTION:According to the output of an inclination sensor 13 and the output of a distance sensor 14, a computing element 15 calculates the height, and this height is displayed on a display. The computing element calculates the floor number of the parking floor from the height, and this floor number of the parking floor is displayed on the display as well. Thus, only by adding a little change to the height meter of a single function, the practical parking floor number information of the streoscopic parking lot can be obtained.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parking floor display device that uses an on-vehicle altimeter to display the number of parking floors in a multi-story parking garage.

0002

[Prior Art] Fig. 14 is a front view of a conventional altimeter for use in a vehicle. 2 and give instructions for scale 3. In addition, 4 is a thermometer inside and outside the car, and 5 is a thermometer inside and outside the car.
are inclinometers, and these are installed in parallel with the altimeter 1.

0003

[Problems to be Solved by the Invention] Conventional altimeters are configured as described above, so they can only display information in units of tens of meters, and are single-function, and the pressure sensor is not affected by the weather. Ru. Furthermore, the number of multi-story parking lots is increasing mainly in urban areas, and they are becoming more and more high-rise. This created problems such as having to go out of your way to check the floor where you parked your car, and if you forgot to check, you had to look around for your car.

[0004] The invention of claim 1 has been made to solve the above-mentioned problem, and provides a parking floor in which an altimeter is made multi-functional and a parking floor of a multi-story parking lot can be displayed based on the altitude information of the altimeter. The purpose is to obtain a display device.

[0005] In addition to the above-mentioned object, the invention of claim 2 also aims to provide a parking floor display device that can display information only when necessary after parking, without increasing the number of components of the display means.

[0006] The invention according to claim 3 makes it possible to obtain a parking floor display device that is convenient to carry and does not require major changes to its constituent parts by not only not displaying the display on the car but also storing the information in the wristwatch. purpose.

It is an object of the present invention to provide a parking floor display device that makes it clear that the vehicle has actually been parked because the display is displayed when the door is locked.

[0008]

[Means for Solving the Problems] A parking floor display device according to the invention of claim 1 includes a first display means for displaying an altitude determined by an altitude detection means, and a parking floor display device for a multi-story parking lot based on the altitude determined by an altimeter. means for determining the floor number of and displaying it on the second display means.

[0009] In the parking floor display device according to the invention of claim 2, the first display means and the second display means are composed of the same display element, and normally display the altitude, and display the parking floor only for a certain period of time after parking. This device is equipped with a display means for displaying the information.

[0010] The parking floor display device according to the invention of claim 3 includes an altimeter having a means for determining the number of floors of a parking floor of a multi-level parking lot determined by an altitude detecting means, and a memory function that can be transmitted and received in a wristwatch type keyless entry system. A wristwatch, a keyless control unit that receives the signal transmitted from the wristwatch with a receiver on the vehicle body, judges the signal and operates the door lock actuator, and sends information on the number of parking floors determined by the altimeter to the keyless control unit. and a transmitter for transmitting information on the number of parking floors from the keyless control unit to the wristwatch.

The parking floor display device according to the invention of claim 4 inputs the floor number information of the parking floor determined by the altimeter when the car is parked, and also drives the door lock actuator when a door lock signal is transmitted from the wristwatch. It is equipped with a keyless control unit that sends a signal to the wristwatch to display the parking floor number when the door is locked.

0012

[Operation] In the invention of claim 1, the altitude determined by the altitude detection means is displayed on the first display means, and the number of floors of the parking floor calculated by calculating the number of floors of the parking floor of the multi-level parking lot from this altitude is displayed. Displayed on the second display means.

In addition, in the invention of claim 2, the first display means and the second display means are made of the same display element so that they can be used for both purposes, and normally display the altitude, but when the vehicle is parked, it is displayed only for a certain period of time. Displays the parking floor and returns to altitude display.

In the invention of claim 3, the number of floors of the parking floor of the multi-story parking lot is determined by the altimeter from the altitude determined by the altitude detection means, and this floor number is transmitted from the keyless control unit to the wristwatch by the transmitter. When the watch sends a signal, it is received by the receiver on the vehicle body, the received signal is judged by the keyless control unit, and the door lock actuator is activated to park the vehicle. Lock the vehicle doors.

In the invention of claim 4, when the vehicle is parked, the floor number information of the parking floor determined by the altimeter is sent to the keyless control unit, and a door lock signal is sent from the wristwatch to the keyless control unit, and the keyless control is performed. When the unit drives the door lock actuator to lock the door, the keyless control unit sends parking floor floor number information to the wristwatch through the transmitter, and this floor number information is displayed on the wristwatch.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the parking floor display device of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of one embodiment. In this Figure 1, 1
3 is an inclination sensor mounted on the vehicle 11 that measures the inclination of the vehicle 11 in the longitudinal direction shown in FIG. Also, 1
4 is a distance sensor that measures the travel distance, and the travel distance information measured by this distance sensor 14 and the inclination sensor 13
The output is outputted to the arithmetic unit 15.

The calculator 15 serves as an altimeter that calculates the altitude based on the output of the inclination sensor 13 and the output of the distance sensor 14, and also calculates the number of parking floors. The altitude and parking floor number information resulting from this calculation are displayed on the display 16. Further, a switch 17 for detecting that a car is parked is inserted between the computing unit 15 and the power source, and in this embodiment, it is an ACC switch.

Next, the operation will be explained. The vehicle 11 shown in FIG. 2 is climbing on a road surface 12 having a slope of βdeg. Now, if the distance that the vehicle 11 traveled uphill is lm, then the altitude that the vehicle 11 climbed is Hm.
is H=l・sin β
...It is found by (1). In practice, since the gradient changes from moment to moment, it goes without saying that a common method is to obtain the height ΔH for each minimum distance traveled and multiply the values.

FIG. 3 shows a flowchart for determining altitude. To explain along this flowchart, first, the altitude calculation routine starts at the start step, an interrupt is applied every unit travel distance Δl at step S1, the slope angle β is fetched at step S2, and the altitude calculation routine starts at step S1.
In step 3, calculate the altitude ΔH, ΔH=Δl・sin β, obtain the altitude ΔH, and integrate it.
In step S4, the altitude H is determined as H=H+ΔH.

Assume that the vehicle 11 has climbed up to a certain floor of the multi-level parking lot and parked there. The altitude at this time is determined as described above, and is displayed on the display 6 as, for example, 27 m.

On the other hand, the height of the first floor of a multi-story parking lot is, for example,
Assuming that the parking floor is 3m, the number of parking floors F can be found by simple calculation as shown in equation (2) below. F = Altitude ÷ Height of 1st floor + 1 = 27 (m) ÷ 3 (m) + 1 = 10 (floor)...(
2) Since it is very easy to determine the number of parking floors F in this manner, the calculation is performed within the advanced computing unit 5. A flowchart of this process is shown in FIG.

Next, the process for the rank F will be explained along the flowchart of FIG. In the flowchart of FIG. 4, the processing routine starts and step S
5. Calculate the altitude. What is the altitude calculation in Fig. 4?
The calculation is as shown in the flowchart of FIG. 3, and once the altitude is determined, the process moves to step S6, and the parking floor is calculated. This parking floor calculation is based on the equation (2) described above, and calculates the number of parking floors.

Next, the process moves to step S7, and the altitude calculated in step S5 is displayed on the display 6, and the parking floor is displayed on the display 6 in step S8. In this display 6, separate displays may be used to display the altitude and the parking floor, but they may be displayed using the same display element as in the second embodiment shown below. Good too. A flowchart at this time is shown in FIG.

In the flowchart of FIG. 5, the same processing steps as those in the flowchart of FIG. 4 are shown overlappingly, so the explanation thereof will be limited to a general description. First, the processing routine starts, and in step S9 the switch 17
(here, the ACC switch) is on or not. If the switch 17 is on, the process moves from step S9 to step S10, and the altitude calculation in step S10 is performed.
Each process of calculating the parking floor in step S11 and displaying the altitude in step S12 is performed, but the processing routine of steps S10 to S12 is the same as the processing routine of steps S5 to S7 in FIG. 4, and redundant explanation will be avoided. .

[0025] Furthermore, in the determination processing step of step S9, when determining whether the switch 17 is on or off,
During normal driving, if the switch 17 is an ACC switch, it is turned on, and when it is turned on, altitude calculation, as in the processing of steps S10 to S12 described above, is performed.
Only calculates parking floor and displays altitude.

However, if the vehicle 11 is now parked and the engine is turned off (in this case, the ACC switch 7 is turned off), the processing routine branches to the NO side in step S9, and the processing moves from step S9 to step S13. . In this step S13, the switch 17 is turned off and the 10
If the second has not elapsed, the process moves from the NO side of step S13 to the parking floor display processing step of step S14. In other words, the altitude display is switched to the parking floor display, which is displayed for a certain period of time (here, 10 seconds).

Further, in step S13, when 10 seconds have elapsed after the switch 17 was turned off, Y in step S13
From the ES side, the process moves to the display-off processing step of step S15, turns off the parking floor display, and returns to the process of step S9 again.

Examples of the altitude display and parking floor display are shown in FIGS. 6 to 9. 6 and 7 show the case of digital display, with FIG. 6 showing the altitude display and FIG. 7 showing the contents of the parking floor display, respectively. Also, Figure 8,
FIG. 9 shows an example of analog display, FIG. 8 shows altitude display, and FIG. 9 shows parking floor display.

If the display processing as shown in the flowchart of FIG. 5 is performed, there is no practical problem even if the parking floor display is switched only when necessary, and the display Since there is only one container, it can be constructed at low cost.

Next, as a third embodiment of the present invention, a parking floor display device combined with a keyless entry system, which has been on the rise in recent years, will be described. A keyless entry system is a system that opens and closes doors using a remote control.
As disclosed in Japanese Patent No. 080, a keyless entry system has been proposed in which a remote control transmitter is built into a wristwatch, giving the wristwatch both a clock function and a remote control function.

In a third embodiment of the present invention, a receiver is further incorporated into the wristwatch disclosed in the above publication, and not only the receiver but also a transmitter for transmitting data to the wristwatch is provided on the vehicle 11 side. By allowing information to be transmitted in both directions, an effective parking floor display device can be realized.

FIG. 10 is a block diagram showing the configuration of this third embodiment. In FIG. 10, the same parts as in FIG. 1 will be described with the same reference numerals. In FIG. 10, an inclination sensor 13 measures the longitudinal inclination of the vehicle 11 (FIG. 2), and its output is output to a calculator 15, and a distance sensor 14 measures the inclination of the vehicle 11 (FIG. 2). The distance traveled is measured, and its output is also output to the calculator 15.

The calculator 15 calculates the altitude and the number of parking floors, and displays the altitude and the number of parking floors on the display 16 based on the calculation results. This computing unit 15
A switch 17 is inserted between the power source and the power source. This switch 17 is a switch that detects that the vehicle 11 is parked, and is referred to as an ACC switch here.

Reference numeral 18 denotes a keyless control unit of the keyless entry system, and the keyless control unit 18 controls activation and deactivation of the door lock actuator 30. A remote control signal sent from the remote control of the wristwatch 21 is input to the keyless control unit 18 through a receiver 19. Furthermore, information on the number of parking floors is transmitted from the keyless control unit 18 to the wristwatch 21 through the transmitter 20.

In addition to the clock function, the wristwatch 21 has a memory function, and also has a transmitter for transmitting remote control signals to the keyless control unit, and a transmitter for transmitting parking floor floor number information sent from the keyless control unit 18. It has a built-in receiver. Furthermore, the wristwatch 21 is provided with a transmission switch button 22 and a display changeover switch button 23. Of these, the former transmission switch button 22 is operated when transmitting a remote control signal for opening and closing the door. The latter display changeover switch button 23 is a button for displaying the parking floor number. The wristwatch 21 is provided with a display section 24 for displaying a clock and a parking floor.

Next, the operation will be explained along the flowcharts shown in FIGS. 11 to 13. FIG. 11 is a flowchart showing the operation flow of the altimeter. In FIG. 11, the processing routine starts, and during driving, steps S16 to S19 are performed.

First, if the switch 17 (in this case, the ACC switch) is turned on in step S16, step S16 is turned on.
The processing of altitude calculation in step S17, parking floor calculation in step S18, and altitude display in step S19 are performed. The processing contents of these steps S16 to S19 are completely the same as steps S9 to S12 of the flowchart of FIG. 5, and a repeated explanation here will be avoided.

In this way, steps S16 to S
19, the result of the calculation by the calculator 15 is displayed on the display 1.
6, and the altitude is displayed on this display 16,
If the switch 17 is off in step S16, the process moves from step S16 to step S20. In this case, the information on the number of parking floors determined during driving is transferred from step S20 to step S21 when the vehicle is parked (in this case, the ACC switch).
It is output from the computing unit 15 to the keyless control unit 18. At this time, the display 16 shows that the parking floor is also 10 minutes from the OFF position of the switch 17, as in the case explained in FIG.
Although it may be displayed for seconds, we will not display it here. In addition, to prevent battery consumption, switch 1
7, the power is forcibly turned off in step S22, and the process of step S16 returns again.

Further, in step S21, if the floor number information of the parking floor has not been transmitted, the process proceeds from step S21 to step S23, and in step S23, the keyless control unit 18 transmits the parking floor information to the wristwatch 21 through the transmitter 20. Send floor number information, Figure 1
The process moves to step S24 of step S2.

In step S24 in FIG. 12, the receiver built in the wristwatch 21 receives parking floor number information sent from the arithmetic unit 15 as an altimeter via the keyless control unit 18 and transmitter 20. When there is an interruption (routine indicated by A in the figure), information on the floor number of this parking floor is received in step S25, and a key lock signal from the wristwatch 21 is expected in step S26. Note that the keyless control unit 18 usually also has flowcharts for other safety functions, door unlocking, signal determination, etc., but these are omitted here.

Next, the operation when the vehicle 11 is parked, the driver gets out of the vehicle, and the driver locks the door of the vehicle 11 by pressing the transmission switch button 21 using the wristwatch 21 that the driver is wearing is shown in FIG. 12, will be explained along the flowchart of FIG.

Until now, the wristwatch 21 has had a clock function, but when the processing routine of FIG. 13 starts and the transmission switch button 21 of the wristwatch 21 is pressed in step S29, the wristwatch 21 functions as a transmitter. When a key lock signal is transmitted from the transmitter built into the wrist watch 21 in step S30, the key lock signal is transmitted in step S30.
The process moves from the B mark in FIG. 11 to the B mark in step S26, and in this step S26, the receiver 19 on the vehicle 11 side receives the key lock signal.

As a result, a key lock signal is sent from the receiver 19 to the keyless control unit 18, and in step S27, the keyless control unit 18 outputs an output to the door lock actuator 30, energizes the door lock actuator 30, and locks the vehicle 11. When the door is locked, the process moves to step S28.

In step S28, the altitude calculated by the arithmetic unit 15 as an altimeter, that is, the floor number information of the parking floor, is output from the keyless control unit 18 to the transmitter 20. As a result, the transmitter 20 issues an interrupt from the side marked C in step S28 to the side marked C in step S31 of the flowchart of FIG. If reception is possible in step S32, the information on the floor number of the parking floor is stored in the memory of the wristwatch 21 in step S33, and the information on the floor number of the parking floor is displayed on the display unit 24.

[0045] This display is displayed for a certain period of time (here, 10 seconds).
is displayed, and if 10 seconds have not elapsed in step S34, 1
The processing routine of steps S34 and S35 is repeated until 0 seconds have elapsed. Then, in step S34, when 10 seconds have elapsed, the process returns from step S34 to step S29.

[0046] In this step S29, if the transmission switch button 22 is not turned on, the process proceeds to step S35.
If the display changeover switch 23 is on, step S3
3, and if the display changeover switch 23 is not on, a clock is displayed in step S36.

That is, when 10 seconds have elapsed in step S34, the wristwatch 21 returns from displaying the floor number information of the parking floor to the clock display, but by pressing the changeover switch button 23, the wristwatch 21 changes from the clock function to the floor number of the parking floor. It will switch to the function of an information display. therefore,
By pressing the display changeover switch button 23 arbitrarily,
You can check the parking floor at any time. Note that the remote control signal here may be transmitted by radio waves, infrared rays, or even ultrasonic waves, and it is obvious that the form of the transmitting means does not matter.

[0048]

[Effect of the invention] As described above, according to the invention of claim 1,
In addition to displaying the altitude detected by the altitude detection means, we also calculated and displayed the number of parking floors of the multi-level parking lot from this altitude, so by making a few changes to a single-function altimeter, you can create a practical three-dimensional parking lot. You can display the number of parking floors in the parking lot.

Further, according to the invention of claim 2, the same display element serves as the altitude display and the parking floor display, and the parking floor information is displayed for a certain period of time after parking, so that one display This method is advantageous in terms of cost since it can be done by just one method and does not require an increase in the number of components.

According to the third aspect of the present invention, the altimeter and the wristwatch in the keyless entry control system are combined to transmit the floor number information of the parking floor to the remote control side when the remote control is operated. The information on the number of parking floors can be stored in the wristwatch, eliminating the need to display it on the vehicle.Not only is it convenient to carry, but the number of parts can be significantly reduced, reducing costs. be.

Furthermore, according to the invention of claim 4, when the door of the vehicle is locked by the remote control, the floor number information of the parking floor is sent to the remote control side and displayed. is displayed, which has the effect of confirming that the vehicle has actually been parked.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a parking floor display device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a road surface with an inclination β and a state in which the vehicle applied to the present invention is climbing a slope.

FIG. 3 is a flowchart showing the flow of operations for determining altitude in the embodiment of FIG. 1;

FIG. 4 is a flowchart showing a processing procedure for displaying parking floors from altitude in the embodiment of FIG. 1;

FIG. 5 is a flowchart showing a processing procedure for altitude display and parking floor display in a parking floor display device according to a second embodiment of the present invention.

FIG. 6 is an explanatory diagram showing an example of a digital display of altitude display in a second embodiment of the present invention.

FIG. 7 is an explanatory diagram showing an example of a digital display of a parking floor display in a second embodiment of the present invention.

FIG. 8 is an explanatory diagram showing an example of analog display of altitude display in the second embodiment of the present invention.

FIG. 9 is an explanatory diagram showing an analog display example of a parking floor display in a second embodiment of the present invention.

FIG. 10 is a block diagram of a parking floor display device according to a third embodiment of the present invention.

FIG. 11 is a flowchart showing a processing procedure of an altimeter in a third embodiment of the invention.

FIG. 12 is a flowchart showing the processing procedure of the keyless control unit in the third embodiment of the invention.

FIG. 13 is a flowchart showing the processing procedure of a wristwatch in a third embodiment of the present invention.

FIG. 14 is a front view of a conventional vehicle altimeter.

[Explanation of symbols]

11 Vehicle 12 Road surface 13 Tilt sensor 14 Distance sensor 15 Arithmetic unit 16 Indicator 17 Switch 18 Keyless control unit 19 Receiver 20 Transmitter 21 Wristwatch 22 Transmission switch button 23 Display changeover switch button 24 Display section

Claims (4)

[Claims] Claim 1: Altitude detection means for determining an altitude; first display means for displaying the altitude detected by the altitude detection means; and determining the number of floors of a parking floor of a multi-story parking lot based on the altitude determined by the altitude detection means. A parking floor display device comprising a means and a second display means for displaying the number of floors of the parking floor determined by the means. 2. The first display means and the second display means are composed of the same display element, and usually display the altitude, and display the parking floor only for a predetermined time after parking. The parking floor display device according to item 1. 3. Altitude detection means for determining an altitude, display means for displaying the altitude detected by the altitude detection means, and means for determining the number of floors of a parking floor of a multi-story parking lot from the altitude determined by the altitude detection means. A wristwatch with a memory function that can transmit and receive signals in the keyless entry system, a keyless control unit that receives signals transmitted from this wristwatch with a receiver on the vehicle body and operates the door lock actuator, A parking floor display device comprising means for transmitting floor number information of a parking floor to a keyless control unit, and a transmitter transmitting floor number information of the parking floor from the keyless control unit to the wristwatch. 4. The keyless control unit inputs the floor number of the parking floor determined by the altimeter when the car is parked, and receives a door lock signal from the wristwatch, and drives the door lock actuator to lock the door. 4. The parking floor display device according to claim 3, wherein the parking floor display device transmits the floor number information of the parking floor to the wristwatch and displays it on the wristwatch.